CN112596638B - Display panel, driving method thereof and display device - Google Patents

Display panel, driving method thereof and display device Download PDF

Info

Publication number
CN112596638B
CN112596638B CN202011606397.0A CN202011606397A CN112596638B CN 112596638 B CN112596638 B CN 112596638B CN 202011606397 A CN202011606397 A CN 202011606397A CN 112596638 B CN112596638 B CN 112596638B
Authority
CN
China
Prior art keywords
touch
time period
thin film
film transistor
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011606397.0A
Other languages
Chinese (zh)
Other versions
CN112596638A (en
Inventor
查宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to CN202011606397.0A priority Critical patent/CN112596638B/en
Priority to US17/270,877 priority patent/US20240036677A1/en
Priority to PCT/CN2021/073114 priority patent/WO2022141697A1/en
Publication of CN112596638A publication Critical patent/CN112596638A/en
Application granted granted Critical
Publication of CN112596638B publication Critical patent/CN112596638B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Position Input By Displaying (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention provides a display panel, a driving method thereof and a display device, wherein the display panel comprises a substrate, a light control device, a display device and a touch device, wherein the light control device, the display device and the touch device are arranged on the substrate; the light control device, the display device and the touch device work in a first time period, a second time period and a third time period respectively, and any two of the first time period, the second time period and the third time period have no intersection; the scheme reduces the parasitic capacitance between the electrodes in the touch device and the electrodes in the light control device so as to reduce the mutual interference of signals on the two electrodes, weakens the phenomenon that the electrodes in the touch device and the electrodes in the light control device are mutually interfered with the electric field for driving liquid crystal in the display device, and improves the working reliability of the touch device, the light control device and the display device in the display panel.

Description

Display panel, driving method thereof and display device
Technical Field
The invention relates to the technical field of display, in particular to manufacturing of a display device, and specifically relates to a display panel, a driving method of the display panel and a display device.
Background
With the simultaneous demands of consumers for touch control and light control functions, the technical development of integrating a touch control device and a light control device into a display device becomes inevitable.
At present, for embedding a touch device and a light control device into a display panel by using an In-cell technology, when the touch device, the light control device and the display device work simultaneously, parasitic capacitance exists between an electrode In the touch device and an electrode In the light control device, so that signals on the two electrodes interfere with each other, and the electrode In the touch device and the electrode In the light control device and an electric field for driving liquid crystal In the display device crosstalk with each other, so that the working reliability of the touch device, the light control device and the display device In the display panel is reduced.
Therefore, it is necessary to provide a display panel, a driving method thereof, and a display apparatus, so as to improve the reliability of the operation of the touch device, the light control device, and the display device in the display panel.
Disclosure of Invention
The invention aims to provide a display panel, a driving method thereof and a display device, wherein on the premise that a light control device, a display device and a touch device are arranged on a substrate, the light control device, the display device and the touch device are respectively set to work in a first time period, a second time period and a third time period, and any two of the first time period, the second time period and the third time period are not intersected, so that the problems that parasitic capacitance exists between electrodes in the existing touch device and electrodes in the light control device, signals on the two electrodes are interfered with each other, the electrodes in the existing touch device and the electrodes in the light control device are interfered with each other with an electric field for driving liquid crystal in the display device, and the working reliability of the touch device, the light control device and the display device in the display panel is reduced are solved.
The embodiment of the invention provides a display panel, which comprises a substrate, a light control device, a display device and a touch device, wherein the light control device, the display device and the touch device are arranged on the substrate; wherein,
the light control device, the display device and the touch device respectively work in a first time period, a second time period and a third time period, and any two of the first time period, the second time period and the third time period have no intersection.
In one embodiment, the display panel further includes:
the light control scanning line is electrically connected with the light control device, so that the light control device works in the first time period;
the display scanning line is electrically connected with the display device, so that the display device works in the second time period;
and the touch scanning line is electrically connected with the touch device, so that the touch device works in the third time period.
In one embodiment, the light control device comprises a photosensitive thin film transistor and a switching thin film transistor which are electrically connected with each other, the display device comprises a display thin film transistor, and the touch device comprises a touch thin film transistor; wherein,
the photosensitive thin film transistor, the switch thin film transistor, the display thin film transistor and the touch thin film transistor are arranged on the same layer and are made of the same material.
In one embodiment, the touch device further includes:
the touch electrode is used for sensing external touch and generating a touch signal, and the source electrode of the touch thin film transistor is electrically connected with the touch electrode;
and the drain electrode of the touch thin film transistor is electrically connected with the touch receiving line, and the touch receiving line receives the touch signal through the touch thin film transistor.
In an embodiment, the touch electrode and the source electrode of the touch thin film transistor are integrally formed, so that the source electrode of the touch thin film transistor is electrically connected to the touch electrode.
In one embodiment, the photosensitive thin film transistor is configured to sense external light and generate a photo signal, and a source of the switching thin film transistor is electrically connected to a drain of the photosensitive thin film transistor, so that the photo signal is transmitted to the switching thin film transistor, and the light control device further includes:
and the photosensitive reading line is electrically connected with the drain electrode of the switch thin film transistor, and the grid electrode of the switch thin film transistor is electrically connected with the light-operated scanning line so as to control the photosensitive reading line to receive the photoelectric signal through the switch thin film transistor.
In one embodiment, the display panel further includes:
the passivation layer covers the photosensitive thin film transistor, the switch thin film transistor, the display thin film transistor, the touch thin film transistor and the touch electrode;
and the common electrodes are positioned on the passivation layer, and each common electrode is opposite to the corresponding display thin film transistor.
An embodiment of the present invention provides a driving method of a display panel, the driving method is suitable for the display panel as described in any one of the above, and the driving method includes:
driving the light control device to work in a first time period;
driving the display device to operate in a second time period;
and driving the touch device to work in a third time period, wherein any two of the first time period, the second time period and the third time period have no intersection.
In an embodiment, the display panel further includes a light control scan line, a display scan line, and a touch scan line, the light control scan line is electrically connected to the light control device, the display scan line is electrically connected to the display device, and the touch scan line is electrically connected to the touch device; wherein,
the step of driving the light control device to operate for the first period of time includes: driving the light control scanning line to drive the light control device to work in the first time period;
the step of driving the display device to operate in the second period of time includes: driving the display scanning lines to drive the display device to work in the second time period;
the step of driving the touch device to work in the third time period comprises: and driving the touch scanning line to drive the touch device to work in the third time period.
Embodiments of the present invention provide a display device comprising a display panel as described in any of the above.
The invention provides a display panel, a driving method thereof and a display device, wherein the display panel comprises a substrate, a color film substrate, a light control device, a display device and a touch device, the substrate and the color film substrate are oppositely arranged, under the condition that the light control device, the display device and the touch device are arranged on one side of the substrate close to the color film substrate, the light control device, the display device and the touch device are respectively arranged to work in a first time period, a second time period and a third time period, and any two of the first time period, the second time period and the third time period have no intersection. According to the scheme, the light control device, the display device and the touch device work in different time periods, namely, the three devices are prevented from working simultaneously, so that parasitic capacitance between electrodes in the touch device and electrodes in the light control device can be reduced to reduce mutual interference of signals on the two electrodes, the phenomenon that the electrodes in the touch device and the electrodes in the light control device are in mutual crosstalk with an electric field used for driving liquid crystals in the display device is weakened, and accordingly the working reliability of the touch device, the light control device and the display device in the display panel is improved.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a display panel according to an embodiment of the present invention.
Fig. 3 is a waveform diagram of different scanning signals in the display panel according to the embodiment of the invention.
Fig. 4 is a schematic cross-sectional view of another display panel according to an embodiment of the disclosure.
Fig. 5 is a flowchart of a driving method of a display panel according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "on", "near", "far", "row", "column", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and the orientations or positional relationships are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, and unless otherwise specifically limited, "electrically connected" means that both are electrically connected, and is not limited to being directly connected or indirectly connected.
In addition, it should be noted that the drawings only provide the structures and steps which are relatively closely related to the present invention, and some details which are not related to the present invention are omitted, so as to simplify the drawings and make the application point clear, but not to show that the device in practice is the same as the drawings and not to limit the device in practice.
The present invention provides a display panel including, but not limited to, the following embodiments.
In one embodiment, as shown in fig. 1, the display panel 00 includes a substrate 10, a light control device 30, a display device 40, and a touch device 50, where the light control device 30, the display device 40, and the touch device 50 are disposed on the substrate 10; the light control device 30, the display device 40 and the touch device 50 operate in a first time period, a second time period and a third time period, respectively, and any two of the first time period, the second time period and the third time period have no intersection. Further, the display panel 00 further includes a color filter substrate 20, the color filter substrate 20 and the substrate 10 are disposed opposite to each other, and the light control device 30, the display device 40 and the touch device 50 are disposed on one side of the substrate 10 close to the color filter substrate 20.
It should be noted that the number of the light control device 30, the display device 40, and the touch device 50 is greater than 1, and the light control device 30, the display device 40, and the touch device 50 may be in a corresponding relationship or a non-corresponding relationship, and only that any two of the light control device 30, the display device 40, and the touch device 50 are in a one-to-one corresponding relationship is taken as an example for description.
The substrate 10 has insulation properties, and the substrate 10 may be a rigid substrate or a flexible substrate. The hard substrate can be a glass substrate, and the glass substrate can be made of at least one of quartz powder, strontium carbonate, barium carbonate, boric acid, boric anhydride, aluminum oxide, calcium carbonate, barium nitrate, magnesium oxide, tin oxide and zinc oxide; the flexible substrate may be a polymer substrate, and the polymer substrate may be at least one of polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polyethylene naphthalate, or polyimide.
The color film substrate 20 may include a color film substrate 201, a plurality of optical filters 202, and a plurality of shielding portions 203. The color film substrate 201 can be a glass substrate, and the composition material of the glass substrate can include at least one of quartz powder, strontium carbonate, barium carbonate, boric acid, boric anhydride, aluminum oxide, calcium carbonate, barium nitrate, magnesium oxide, tin oxide, and zinc oxide; the plurality of optical filters 202 and the plurality of shielding portions 203 are disposed on one side of the color film substrate 201 close to the substrate 10, each optical filter 202 in the plurality of optical filters 202 is disposed opposite to the corresponding display device 40, and each shielding portion 203 in the plurality of shielding portions 203 is disposed between two adjacent optical filters 202 with different colors, and is used for separating the two adjacent optical filters 202 with different colors. It should be noted that the light control device 30 needs to sense external light to operate, so that the light control device 30 should not be shielded by the shielding portion 203, that is, a corresponding gap is formed in an area, corresponding to the light control device 30, on one side of the color film substrate 201 close to the substrate 10, so that the external light can irradiate the light control device 30. In addition, the color filter substrate 20 in fig. 1 only shows the relative positional relationship among the color filter substrate 201, the plurality of color filters 202, and the plurality of shielding portions 203, and fig. 1 is a schematic diagram, and the relative positional relationship among the plurality of color filters 202, the plurality of shielding portions 203, and devices on the substrate 10 cannot be limited.
It can be understood that, although the substrate 10 and the color filter substrate 20 are disposed oppositely, the light control device 30, the display device 40 and the touch device 50 are disposed on one side of the substrate 10 close to the color filter substrate 20, because the light control device 30, the display device 40 and the touch device 50 respectively operate in the first time period, the second time period and the third time period, and any two of the first time period, the second time period and the third time period do not intersect with each other, that is, at any time, only one of the light control device 30, the display device 40 and the touch device 50 transmits a signal, and the other two of the light control device 30, the display device 40 and the touch device 50 can be understood as being in a power-off state, that is, one of the light control device 30, the display device 40 and the touch device 50 at any time is not interfered by the other two of the light control device 30, the display device 40 and the touch device 50 in the display panel 00.
In an embodiment, as shown in fig. 2, the display panel 00 further includes: the light-operated scanning line 01 is electrically connected with the light-operated device 30, so that the light-operated device 30 works in the first time period; a display scanning line 02, wherein the display scanning line 02 is electrically connected with the display device 40, so that the display device 40 operates in the second time period; the touch scanning line 03 is electrically connected to the touch device 50, so that the touch device 50 operates in the third time period.
Specifically, the light-operated scan line 01 may transmit a light-operated scan signal Laser gate to the light-operated device 30, the Display scan line 02 may transmit a Display scan signal Display gate to the Display device 40, and the Touch scan line 03 may transmit a Touch scan signal Touch gate to the Touch device 50. Further, for the corresponding light control device 30, the Display device 40 and the Touch device 50, the pulses in the corresponding light control scan signal Laser gate, display scan signal Display gate and Touch scan signal Touch gate may be respectively maintained in the first time period, the second time period and the third time period, so that the corresponding light control device 30, the Display device 40 and the Touch device 50 may sequentially operate in the first time period, the second time period and the third time period.
Further, the display panel 00 may include a plurality of light control devices 30, a plurality of display devices 40, and a plurality of touch control devices 50, and of course, the display panel 00 may also include a plurality of light control scan lines 01, a plurality of display scan lines 02, and a plurality of touch control scan lines 03 respectively corresponding to the plurality of light control devices 30, the plurality of display devices 40, and the plurality of touch control devices 50 one to one. For example, the plurality of light control devices 30, the plurality of display devices 40, and the plurality of touch control devices 50 may be repeatedly arranged in the row and column directions in a manner as shown in fig. 2, that is, a combination of one light control device 30, one display device 40, and one touch control device 50 as a minimum unit is repeatedly arranged in a matrix along the row and column directions, wherein, although one light control device 30, one display device 40, and one touch control device 50 in the minimum unit are located in different rows, the three may be located in the same column or different columns. Assuming that the Display panel 00 includes n minimum units, as shown in fig. 3, for any ith minimum unit, a pulse in the ith Display scan signal Display gate (i) transmitted to the ith Display device 40 is delayed by a time period of the first time period from a pulse in the ith light control scan signal Laser gate (i) transmitted to the ith light control device 30, a pulse in the ith Touch scan signal Touch gate (i) transmitted to the ith Touch device 50 is delayed by a time period of the second time period from a pulse in the ith Display scan signal Display gate (i) transmitted to the ith Display device 40, and a pulse in the (i + 1) th light control scan signal Touch gate (i + 1) transmitted to the (i + 1) th Touch device 30 is delayed by a time period of the third time period from a pulse in the ith light control scan signal Touch gate (i) transmitted to the ith Touch device 50. Assuming that the total time for the plurality of light control devices 30, the plurality of display devices 40, and the plurality of touch devices 50 in the display panel 00 to complete work in one frame is t, the corresponding frequency is 1/t.
In one embodiment, as shown in fig. 4, the light control device 30 includes a photosensitive thin film transistor 301 and a switching thin film transistor 302 electrically connected to each other, the display device 40 includes a display thin film transistor 401, and the touch device 50 includes a touch thin film transistor 501; the photosensitive thin film transistor 301, the switching thin film transistor 302, the display thin film transistor 401 and the touch thin film transistor 501 are arranged in the same layer and made of the same material. The display thin film transistor 401 and the touch thin film transistor 501 may be simultaneously formed on one side of the substrate 10 close to the color filter substrate 20, and of course, the light control device 30 may also have a structure including 3, 4, or 5 thin film transistors.
Specifically, as shown in fig. 2 and 4, the photosensitive thin film transistor 301, the switching thin film transistor 302, the display thin film transistor 401, and the touch thin film transistor 501 may have the same structure, and the touch thin film transistor 501 is taken as an example for description here. As shown in fig. 4, the touch thin film transistor 501 includes a gate electrode 05, a gate insulating layer 06 covering the gate electrode 05, an active layer 07 disposed on the gate insulating layer 06, and a source electrode 08 and a drain electrode 09 disposed in contact with the left and right sides of the active layer 07, respectively. Further, the gate insulating layer of the touch thin film transistor 501, the gate insulating layer of the photosensitive thin film transistor 301, the gate insulating layer of the switching thin film transistor 302, and the gate insulating layer of the display thin film transistor 401 may be connected to form a continuous gate insulating layer 60; the photosensitive thin film transistor 301 and the switching thin film transistor 302 may be disposed in series, for example, a source of the photosensitive thin film transistor 301 may be electrically connected to a drain of the switching thin film transistor 302, and further, the photosensitive thin film transistor 301 and the switching thin film transistor may be disposed in a connected manner or integrally formed.
Specifically, here, the touch thin film transistor 501 is taken as an example, and the composition material of the active layer 07 may include at least one of hydrogenated amorphous silicon, germanium, a mixture of germanium and silicon; the source electrode 08 and the drain electrode 09 may each be a composite layer composed of a copper layer and a molybdenum layer, for example, the source electrode 08 and the drain electrode 09 may each include a copper layer and a molybdenum layer provided on the copper layer, wherein the molybdenum layer may improve surface characteristics of the copper layer. The light sensing waveband of the light sensing thin film transistor 301 in the light control device 30 may include visible light with a wavelength of 380nm to 780nm or infrared light with a wavelength of 780nm to 1000nm.
In an embodiment, as shown in fig. 2 and 4, the touch device 50 further includes: the touch electrode 502 is used for sensing external touch and generating a touch signal, and the source 08 of the touch thin film transistor 501 is electrically connected with the touch electrode 502; the drain electrode 09 of the touch thin film transistor 501 is electrically connected to the touch receiving line 503, and the touch receiving line 503 receives the touch signal through the touch thin film transistor 501.
Specifically, when the source 08 of the touch tft 501 is electrically connected to the touch electrode 502, when a finger touches the touch electrode 502, the finger and the touch electrode 502 are coupled to generate a capacitance, and the two electrodes of the capacitance are formed after the touch electrode 502 and the finger are capacitively coupled, which is equivalent to connecting a capacitor in series, so that the measured capacitance value is increased. Specifically, as shown in fig. 2 and 4, the touch scan line 03 in fig. 2 is electrically connected to the gate 05 of the touch tft 501, the drain 09 of the touch tft 501 is electrically connected to the touch receive line 503, and when the signal in the touch scan line 03 controls the gate 05 to turn off the touch tft 501, the touch receive line 503 is electrically disconnected from the touch electrode 502; when the signal in the touch scan line 03 controls the gate 05 to turn on the touch tft 501 in the third time period, the touch receive line 503 is electrically coupled to the touch electrode 502 through the source 08 and the drain 09 of the touch tft 501 to charge the touch electrode 502 and measure the capacitance value of the touch electrode 502. It can be understood that the touch device 50 is a matrix self-capacitance touch device, which can achieve a higher scanning frequency and a higher noise immunity.
In an embodiment, as shown in fig. 4, the touch electrode 502 and the source 08 of the touch thin film transistor 501 are integrally formed, so that the source 08 of the touch thin film transistor 501 is electrically connected to the touch electrode 502.
Further, as shown in fig. 4, both the source electrode 08 and the drain electrode 09 may be a composite layer composed of a copper layer and a molybdenum layer, wherein the molybdenum layer on the copper layer may extend to a side away from the source electrode 08 to form the touch electrode 502, and the thickness of the touch electrode 502 may be 100nm to 1000nm.
In an embodiment, as shown in fig. 2 and 4, the photosensitive thin film transistor 301 is configured to sense external light and generate a photoelectric signal, the switching thin film transistor 302 is electrically connected to the photosensitive thin film transistor 301, and the light control device 30 further includes: the light sensing reading line 303, the light sensing reading line 303 and the switch thin film transistor 302 are electrically connected, and the light sensing reading line 303 receives the photoelectric signal through the switch thin film transistor 302.
Further, the source of the switching thin film transistor 302 is electrically connected to the drain of the photosensitive thin film transistor 301, so that the photoelectric signal is transmitted to the switching thin film transistor 302; as shown in fig. 2, the light sensing readout line 303 is electrically connected to the drain of the switching thin film transistor 302, and the gate of the switching thin film transistor 302 is electrically connected to the light control scan line 01, so as to control the light sensing readout line 303 to receive the photoelectric signal through the switching thin film transistor 302.
Specifically, as shown in fig. 2, the light control device 30 further includes a storage capacitor 304, a first voltage line 305, and a second voltage line 306. Specifically, the gate and the drain of the photosensitive thin film transistor 301 are electrically connected to the second voltage line 306 and the first voltage line 305, respectively, and the second voltage line 306 and the first voltage line 305 transmit corresponding working voltages to the gate and the source of the photosensitive thin film transistor 301, respectively, so that the photosensitive thin film transistor 301 is in a working state, the photosensitive thin film transistor 301 senses external light and generates a photoelectric signal at the source, wherein the signals transmitted in the second voltage line 306 and the first voltage line 305 are constant voltage signals; two ends of the storage capacitor 304 are electrically connected to the drain of the photosensitive thin film transistor 301 and the second voltage line 306, respectively, and the storage capacitor 304 is used for storing the photoelectric signal; the gate of the switching thin film transistor 302 is electrically connected to the optically controlled scanning line 01, a signal in the optically controlled scanning line 01 causes the switching thin film transistor 302 to be turned on during the first period, and the photo readout line 303 receives the photo signal stored in the storage capacitor 304 through the switching thin film transistor 302. It can be understood that, with the technical solution of the present invention, that is, the light control device 30, the display device 40, and the touch device 50 are respectively operated in the first time period, the second time period, and the third time period, when the light control device 30 is operated, the light sensing read line 303 in the light control device 30 is not affected by crosstalk between the touch electrode 502 and the pixel electrode in the display device 40. When the number of the thin film transistors in the light control device 30 is 2, 3, 4 or 5, respectively, the thin film transistors and the storage capacitor 304 form a circuit structure of 2T1C, 3T1C,4T1C or 5T 1C.
In an embodiment, as shown in fig. 4, the display panel 00 further includes a passivation layer 60 covering the photosensitive thin film transistor 301, the switching thin film transistor 302, the display thin film transistor 401, the touch thin film transistor 501 and the touch electrode 502, and a plurality of common electrodes 70 located on the passivation layer 60, where each common electrode 70 of the plurality of common electrodes 70 may be disposed opposite to the corresponding display thin film transistor 401 or disposed corresponding to the corresponding display scan line 02 in fig. 2. Further, the Display panel 00 may be an LCD (Liquid Crystal Display) Display panel, for example, as shown in fig. 4, the Display panel 00 may further include an alignment layer 80 covering the plurality of common electrodes 70, a Liquid Crystal layer 90 located on one side of the alignment layer 80 close to the color filter substrate 20, and a protective layer 100 covering the plurality of shielding portions 203 and one side of the plurality of optical filters 202 close to the Liquid Crystal layer 90, where a constituent material of the alignment layer 80 may include polyimide. It should be noted that the positional relationship between the different film layers in the display panel 00 is not limited to the positional relationship in fig. 4.
Specifically, when the display scanning line 02 in fig. 2 causes the display thin film transistor 401 to be turned on in the second time period, the data signal of the data line 402 reaches the pixel electrode via the source and the drain of the display thin film transistor 401, and a horizontal electric field for driving the liquid crystal in the liquid crystal layer 90 to rotate is formed between the pixel electrode and the common electrode 70 after the data signal is applied to the pixel electrode. It should be noted that, the relative position relationship between the plurality of common electrodes 70 and the plurality of pixel electrodes in the liquid crystal display panel is not limited, that is, the display mode of the liquid crystal display panel may be any one of IPS, ADS or FFS. It can be understood that, with the technical solution of the present invention, that is, the light control device 30, the display device 40, and the touch device 50 are respectively operated in the first time period, the second time period, and the third time period, when the display device 40 is operated, the liquid crystal in the liquid crystal layer 90 is susceptible to the crosstalk influence of the electric field generated by the photosensitive thin film transistor 301 and the electric field generated by the touch thin film transistor 501.
It should be noted that, in the electrical connection manner shown in fig. 2, for each minimum unit, a plurality of lines arranged in the transverse direction may be moved to the same column, and a plurality of lines arranged in the longitudinal direction may be moved to the same row, so that the light control device 30, the display device 40, and the touch controller 50 in the minimum unit may be surrounded to the same area.
The present invention also provides a driving method of a display panel, the driving method being suitable for the display panel as described in any of the above, as shown in fig. 5, the driving method comprising the steps of:
s1, driving the light control device to work in a first time period;
s2, driving the display device to work in a second time period;
and S3, driving the touch device to work in a third time period, wherein any two of the first time period, the second time period and the third time period have no intersection.
It can be understood that, as described above, although the substrate and the color filter substrate are disposed oppositely, the light control device, the display device and the touch device are disposed on one side of the substrate close to the color filter substrate, because the light control device, the display device and the touch device respectively operate in the first time period, the second time period and the third time period, and any two of the first time period, the second time period and the third time period do not intersect with each other, that is, at any time, only one of the light control device 30, the display device and the touch device transmits a signal, and the other two of the light control device 30, the display device and the touch device can be understood as being in a power-off state, that is, one of the light control device, the display device and the touch device in the display panel does not interfere with the other two of the light control device, the display device and the touch device, the embodiment improves the reliability of the operation of the light control device, the display device and the touch device in the display panel.
In an embodiment, the display panel further includes a light control scan line, a display scan line, and a touch scan line, the light control scan line is electrically connected to the light control device, the display scan line is electrically connected to the display device, and the touch scan line is electrically connected to the touch device; wherein the step of driving the light control device to operate for the first period of time comprises: driving the light control scanning line to drive the light control device to work in the first time period; the step of driving the display device to operate in the second period of time includes: driving the display scanning lines to drive the display device to work in the second time period; the step of driving the touch device to work in the third time period comprises: and driving the touch scanning line to drive the touch device to work in the third time period.
Specifically, the light-operated scan line may transmit a light-operated scan signal Laser gate to the light-operated device, the Display scan line may transmit a Display scan signal Display gate to the Display device, and the Touch scan line may transmit a Touch scan signal Touch gate to the Touch device. Further, for the corresponding light control device, display device and Touch device, the pulses in the corresponding light control scan signal Laser gate, display scan signal Display gate and Touch scan signal Touch gate may be respectively maintained in the first time period, the second time period and the third time period, so that the corresponding light control device, display device and Touch device may sequentially operate in the first time period, the second time period and the third time period.
Further, the Display panel may include a plurality of light control devices, a plurality of Display devices, and a plurality of Touch control devices, for example, the plurality of light control devices, the plurality of Display devices, and the plurality of Touch control devices may be arranged in a column direction repeatedly in a manner as shown in fig. 2 with reference to the above, and assuming that the Display panel includes n minimum units, with reference to the above timing sequence shown in fig. 3, for any ith minimum unit, a duration in which a pulse in the ith Display scan signal Display gate (i) transmitted to the ith Display device is delayed from a pulse in the ith Display scan signal Laser gate (i) transmitted to the ith light control device is a duration of the first period, the pulse in the ith Touch scan signal Touch gate (i) transmitted to the ith Touch device is delayed by a time length of the second time period compared with the pulse in the ith Display scan signal Display gate (i) transmitted to the ith Display device, and the pulse in the (i + 1) th light control scan signal Laser gate (i + 1) transmitted to the (i + 1) th light control device is delayed by a time length of the third time period compared with the pulse in the ith Touch scan signal Touch gate (i) transmitted to the ith Touch device. Assuming that the total time for completing the work of the plurality of light control devices, the plurality of display devices and the plurality of touch devices in the display panel in one frame is t, the corresponding frequency is 1/t.
The invention also provides a display device comprising a display panel as described in any of the above.
The invention provides a display panel, a driving method thereof and a display device, wherein the display panel comprises a substrate, a color film substrate, a light control device, a display device and a touch device, the substrate and the color film substrate are oppositely arranged, under the condition that the light control device, the display device and the touch device are arranged on one side of the substrate close to the color film substrate, the light control device, the display device and the touch device are respectively arranged to work in a first time period, a second time period and a third time period, and any two of the first time period, the second time period and the third time period have no intersection. According to the scheme, the light control device, the display device and the touch device work in different time periods, namely, the three devices are prevented from working simultaneously, so that the parasitic capacitance between the electrode of the touch sensor and the electrode of the light control sensor can be reduced to reduce the mutual interference of signals on the two electrodes, and the working reliability of the touch sensor and the light control sensor in the display panel is improved.
The display panel, the driving method thereof, and the structure of the display device provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above embodiments is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A display panel is characterized by comprising a substrate and a plurality of minimum units, wherein each minimum unit comprises a light control device, a display device and a touch device, and the light control device, the display device and the touch device are arranged on the substrate;
the light control device, the display device and the touch control device respectively work in a first time period, a second time period and a third time period, any two of the first time period, the second time period and the third time period are not intersected, and the second time period is located between the first time period and the third time period;
the minimum units work in sequence in one frame, the minimum units are arranged in a matrix along the row direction and the column direction, and the light control device, the display device and the touch device in each minimum unit are positioned in three continuous rows or three continuous columns.
2. The display panel of claim 1, wherein the display panel further comprises:
the light control scanning line is electrically connected with the light control device, so that the light control device works in the first time period;
the display scanning line is electrically connected with the display device, so that the display device works in the second time period;
and the touch scanning line is electrically connected with the touch device, so that the touch device works in the third time period.
3. The display panel of claim 2, wherein the light control device comprises a light sensing thin film transistor and a switching thin film transistor electrically connected to each other, the display device comprises a display thin film transistor, and the touch device comprises a touch thin film transistor; wherein,
the photosensitive thin film transistor, the switch thin film transistor, the display thin film transistor and the touch thin film transistor are arranged on the same layer and are made of the same material.
4. The display panel of claim 3, wherein the touch device further comprises:
the touch electrode is used for sensing external touch and generating a touch signal, and the source electrode of the touch thin film transistor is electrically connected with the touch electrode;
and the drain electrode of the touch thin film transistor is electrically connected with the touch receiving line, and the touch receiving line receives the touch signal through the touch thin film transistor.
5. The display panel according to claim 4, wherein the touch electrode and the source electrode of the touch thin film transistor are integrally formed, so that the source electrode of the touch thin film transistor is electrically connected to the touch electrode.
6. The display panel of claim 4, wherein the display panel further comprises:
the passivation layer covers the photosensitive thin film transistor, the switch thin film transistor, the display thin film transistor, the touch thin film transistor and the touch electrode;
and the common electrodes are positioned on the passivation layer, and each common electrode is opposite to the corresponding display thin film transistor.
7. The display panel of claim 3, wherein the photosensitive thin film transistor is configured to sense external light and generate a photo signal, and the source of the switching thin film transistor is electrically connected to the drain of the photosensitive thin film transistor, so that the photo signal is transmitted to the switching thin film transistor, and the light control device further comprises:
and the photosensitive reading line is electrically connected with the drain electrode of the switch thin film transistor, and the grid electrode of the switch thin film transistor is electrically connected with the light-operated scanning line so as to control the photosensitive reading line to receive the photoelectric signal through the switch thin film transistor.
8. A driving method of a display panel, the driving method being applied to the display panel according to any one of claims 1 to 7, the driving method comprising driving a plurality of the minimum units to operate sequentially in one frame, the plurality of the minimum units being arranged in a matrix along a row direction and a column direction, the light control device, the display device and the touch device in each of the minimum units being located in three consecutive rows or three consecutive columns, and driving each of the minimum units to operate comprises:
driving the light control device to work in the first time period;
driving the display device to operate in the second time period;
and driving the touch device to work in the third time period, wherein any two of the first time period, the second time period and the third time period have no intersection, and the second time period is between the first time period and the third time period.
9. The driving method according to claim 8, wherein the display panel further includes a light control scan line, a display scan line, and a touch scan line, the light control scan line is electrically connected to the light control device, the display scan line is electrically connected to the display device, and the touch scan line is electrically connected to the touch device; wherein,
the step of driving the light control device to operate for the first period of time includes: driving the light control scanning line to drive the light control device to work in the first time period;
the step of driving the display device to operate in the second period of time includes: driving the display scanning lines to drive the display device to work in the second time period;
the step of driving the touch device to work in the third time period comprises: and driving the touch scanning line to drive the touch device to work in the third time period.
10. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 7.
CN202011606397.0A 2020-12-30 2020-12-30 Display panel, driving method thereof and display device Active CN112596638B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202011606397.0A CN112596638B (en) 2020-12-30 2020-12-30 Display panel, driving method thereof and display device
US17/270,877 US20240036677A1 (en) 2020-12-30 2021-01-21 Display panel and driving method thereof
PCT/CN2021/073114 WO2022141697A1 (en) 2020-12-30 2021-01-21 Display panel and driving method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011606397.0A CN112596638B (en) 2020-12-30 2020-12-30 Display panel, driving method thereof and display device

Publications (2)

Publication Number Publication Date
CN112596638A CN112596638A (en) 2021-04-02
CN112596638B true CN112596638B (en) 2023-03-21

Family

ID=75204170

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011606397.0A Active CN112596638B (en) 2020-12-30 2020-12-30 Display panel, driving method thereof and display device

Country Status (3)

Country Link
US (1) US20240036677A1 (en)
CN (1) CN112596638B (en)
WO (1) WO2022141697A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113363270B (en) * 2021-05-28 2023-05-09 深圳市华星光电半导体显示技术有限公司 Pixel arrangement structure and display panel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645999A (en) * 2012-03-02 2012-08-22 华映光电股份有限公司 Touch control display device
CN104484077A (en) * 2015-01-05 2015-04-01 深圳市华星光电技术有限公司 Display panel having touch control function and touch control detection method thereof
CN111106144A (en) * 2018-10-25 2020-05-05 晶门科技（中国）有限公司 Display of passive matrix organic light emitting diode

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI438660B (en) * 2009-06-30 2014-05-21 Century Display Shenzhen Co Touch display panel
KR101819980B1 (en) * 2011-09-09 2018-01-19 삼성전자주식회사 Light sensing apparatus and method of driving the light sensing apparatus, and optical touch screen apparatus including the light sensing apparatus
CN103207720B (en) * 2013-03-29 2015-09-16 北京京东方光电科技有限公司 A kind of control method of touch-control display panel and device and display device
CN103294283B (en) * 2013-05-17 2017-05-03 京东方科技集团股份有限公司 Optical sensing type embedded touch screen and display device
TWI799316B (en) * 2013-11-29 2023-04-11 日商半導體能源研究所股份有限公司 Portable data processing device
CN104020904B (en) * 2014-05-28 2015-04-01 京东方科技集团股份有限公司 Capacitive type embedded touch screen and display device
CN104200784B (en) * 2014-07-24 2017-07-28 京东方科技集团股份有限公司 Pixel-driving circuit and its driving method, array base palte, Transflective display device
TW202340820A (en) * 2015-03-27 2023-10-16 日商半導體能源研究所股份有限公司 Touch panel
JP6682398B2 (en) * 2016-08-02 2020-04-15 株式会社ジャパンディスプレイ Force detection device, display device, and organic electroluminescence display device
CN107342308B (en) * 2017-06-30 2019-12-17 上海天马微电子有限公司 Organic light-emitting display panel and electronic equipment
CN107480639B (en) * 2017-08-16 2020-06-02 上海天马微电子有限公司 Touch display panel and display device
JP6854743B2 (en) * 2017-11-15 2021-04-07 株式会社ジャパンディスプレイ Display device
CN108415622B (en) * 2018-05-23 2022-01-07 京东方科技集团股份有限公司 Touch display panel, preparation method thereof and display device
WO2020051840A1 (en) * 2018-09-13 2020-03-19 Boe Technology Group Co., Ltd. Integrated fingerprint detection touch control display apparatus and integrated method of fingerprint detection, touch control, and image display
US11054948B2 (en) * 2018-10-05 2021-07-06 Apple Inc. Light transmissivity-controlled touch sensor panel design
CN110765888B (en) * 2019-09-29 2023-09-29 武汉华星光电技术有限公司 Fingerprint identification display module and control method thereof
CN111696494A (en) * 2020-07-02 2020-09-22 Tcl华星光电技术有限公司 Display panel and display device
CN112114700A (en) * 2020-09-03 2020-12-22 深圳市华星光电半导体显示技术有限公司 Sensor module and display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102645999A (en) * 2012-03-02 2012-08-22 华映光电股份有限公司 Touch control display device
CN104484077A (en) * 2015-01-05 2015-04-01 深圳市华星光电技术有限公司 Display panel having touch control function and touch control detection method thereof
CN111106144A (en) * 2018-10-25 2020-05-05 晶门科技（中国）有限公司 Display of passive matrix organic light emitting diode

Also Published As

Publication number Publication date
US20240036677A1 (en) 2024-02-01
WO2022141697A1 (en) 2022-07-07
CN112596638A (en) 2021-04-02

Similar Documents

Publication Publication Date Title
EP2746840B1 (en) TN liquid crystal display device and touch control method thereof
KR101160826B1 (en) Liquid crystal display including sensing element
KR101525802B1 (en) Liquid crystal display
JP5066335B2 (en) Display device with built-in sensing element
EP2889674B1 (en) Built-in capacitive touch screen crystal display module and driving method thereof
US9007329B2 (en) Liquid crystal display device including touch panel
EP0633542B1 (en) An electro-optic device
CN102870220B (en) Circuit board and display device
KR101546049B1 (en) Touch display panel and driving method thereof
US10621405B2 (en) Fingerprint sensor, fingerprint sensor module, and method for manufacturing fingerprint sensor
KR102372564B1 (en) Touch panel and display device including the same
CN102866815A (en) Capacitance type embedded touch screen and display device
CN103365509A (en) Display device including touch sensor
KR20140143646A (en) Display device including touch sensor and manufacturing method thereof
KR101540072B1 (en) Liquid crystal display apparatus
US10509499B2 (en) TFT substrate and touch display panel using same
KR20060056793A (en) Display device including sensing element
CN112596638B (en) Display panel, driving method thereof and display device
CN113485048B (en) Display panel, display terminal and display driving method
CN112882615B (en) Display panel, driving method thereof and display device
KR100930497B1 (en) Touch panel
KR20060056633A (en) Display device including sensing element
KR20060099886A (en) Display device
CN113655914B (en) Array substrate, touch display panel and touch display device
KR100686223B1 (en) Liquid crystal display

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant